Spring steels are used under impact, vibration or long-term stress, so spring steels are required to have high tensile strength, elastic limit, and high fatigue strength. In the process, the spring steel must have certain hardenability, it is not easy to decarburize, and the surface quality is good. The carbon spring steel is a high-quality carbon structural steel with a carbon content of WC in the range of 0.6%-0.9%. The alloy spring steels are mainly silicon-manganese steel grades. Their carbon content is slightly lower, mainly by increasing the silicon content Wsi to improve performance; in addition there are alloy spring steels of niobium, tungsten and vanadium. In recent years, combined with China's resources, and based on the requirements of new technologies for the design of automobiles and tractors, new types of steel, such as boron, antimony and molybdenum, have been developed on the basis of silicon-manganese steel, which has extended the service life of springs and improved the quality of springs. .
Fujitec Elevator Spare Parts, Fujitec Elevator Parts
Fujitec
Worldwide
Founded in Osaka, Japan in 1948, Fujitec Co., Ltd. has operational
headquarters located in the Americas, Japan, South Asia, East Asia and Europe.
With a network of 11 state-of-the-art manufacturing facilities and several sales
service offices, the company strives to lead the industry in safety, innovation
and quality. Fujitec`s worldwide organization includes four research and
development/engineering centers which are located in Japan, Singapore, China and
the United States.
In Japan, Fujitec's [Big Wing" facility houses a 560-foot research tower,
the tallest of its kind in the world. This facility is focused on developing
cutting-edge technologies and integrating all phases of product development,
design and manufacturing. Fujitec's research and development facility in China
is located in the Song Jiang Industrial Zone in Shanghai and is approximately
150,000 m2 (1.6 million sq. ft). This space is utilized for parts and
components procurement. Fujitec America continues to utilize the landmark,
blue-capped 220-foot elevator research/test tower located near its U.S.
headquarters in Mason, Ohio.
Fujitec Elevator Spare Parts, Fujitec Elevator Parts
CEP Elevator Products ( China ) Co., Ltd. , https://www.china-elevators.com